OpenSSL 1.1.0 < 1.1.0c Multiple Vulnerabilities

high Nessus Network Monitor Plugin ID 9800

Synopsis

The remote web server is running an outdated instance of OpenSSL and is affected by multiple attack vectors.

Description

According to its banner, the version of OpenSSL on the remote host is version 1.1.0 prior to 1.1.0c and is affected by multiple vulnerabilities :

- A NULL pointer dereference flaw exists in the 'asn1_item_embed_d2i()' function in 'crypto/asn1/tasn_dec.c' that is triggered when handling the ASN.1 CHOICE type. This may allow a remote attacker to crash a process linked against the library. (CVE-2016-7053)
- An overflow condition exists in the 'chacha20_poly1305_cipher()' function in 'crypto/evp/e_chacha20_poly1305.c' that is triggered when handling TLS connections using *-CHACHA20-POLY1305 ciphersuites. This may allow a remote attacker to cause a heap-based buffer overflow and crash a process linked against the library. (CVE-2016-7054)
- A carry propagating flaw exists in the Broadwell-specific Montgomery multiplication procedure that leads to incorrect results. This may result in transient authentication and key negotiation failures, reproducible erroneous outcomes of public-key operations, or potentially attacks against ECDH key negotiation in very atypical cases. (CVE-2016-7055)

Solution

Upgrade OpenSSL to version 1.1.0c or higher

See Also

https://www.openssl.org/news/secadv/20161110.txt

Plugin Details

Severity: High

ID: 9800

Family: Web Servers

Published: 11/18/2016

Updated: 3/6/2019

Risk Information

VPR

Risk Factor: Medium

Score: 4.4

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 6.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 7.2

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:X/RL:O/RC:C

Vulnerability Information

CPE: cpe:/a:openssl:openssl

Patch Publication Date: 11/10/2016

Vulnerability Publication Date: 11/10/2016

Reference Information

CVE: CVE-2016-7053, CVE-2016-7054, CVE-2016-7055

BID: 94238, 94244